Double-acting solenoid pump



July 21, 1925. `1,546,563

C. S. BURTON DOUBLE ACTING SOLENOID PUMP Filed Feb. 9. 1923 MaI/razz.

, 4 f v as l/rn.

I Patented 21,` 192152,12 l

UNITED fsTAras- )PATENTl carica.

l 'CHARLES BURTON, 0F Pm, ILLINOIS, ASSIGNOR T0 STEWART-WARNER SPEEDOIETER CORPORATION, VIRGINIA. .j

v02E' CHICAGO, ILLINOIS, A CORPORATION OF neunte-scrute -sommen) PUMP.

` application and rebma'ry a, 192s. semi No. 618,171.

To all whom t may concern:

Be it known that I, CHARLES lS. BonToN,

I a citizen ofthe United States, vresiding in the village of Oak Park, in the'county-ofl Cook and the State of Illinois, haveinvented certain new'ail 'useful Improvements .in Double-Acting Solenoid Pumps,of which.

Vthe following isi a. specification, reference being had to the accompanying drawings forming a part thereof.

f The purpose of this inventionls to provide a solenoid 'operated pumping meansfor producing vacuum for vacuum fuel feed de 'Figure 1 is a side elevation show' a' portion of the engine of an autom ile equipped with av device embodying this 1n- Figure 2- is an axial section of :the's'olenoid shown' in Figure 2.v

and pumping device. v

AFigure 3 1s a section' at the line .3-3 on Figure 2. f

Figure 4 is' a bottom plan View ofthe Vparts tion may be mounted at'anyconvenient posiin its customer tion on the-automobile whosejengine ,is to be 'served but it is' designedr'withia viewl to. l, p' ing mounted as'shown inlFigurejl alongside the vacuum ,tank when 'the latter is mounted sidev of the das The device as-la whole, thus'mounted, is indicated by the letterA 1n Figure 1. lIt comprises a pumpmgelement which as shown consists of a sy phon, 1,

'mounted in a supporting frame or chamber,

2, and having an atmosphere Vent, 3, con'- trolled vby the' inwardly seating check valve, 4, and a suction connection, 5,A eading tothe b 'an outward-ly seating YrIlhe closed end of the syl- Y core -reciprocates is' double comprising two independent magnet elements, 9 and 10, with' their circuit windings', 11 and 12, arranged end to 'end .so that the sin lecore reciprocates in' both solenoids. I e solenoid core has a second stem, 13, at the opposite end from the stem, 7, which terminates in an expanded head or abutment, 14,' for encounter position on the' forward at the opposite limits of the stroke of the core, with two levers, 16 and l17, fulcrumed on a bracket, 18, extending from the lower head,'19,` of the solenoid mount, said levers being connected byv a link, 20, to cause them to have simultaneous movement when either is actuated by encounter of the abutment, 14, of the solenoid core stem. rIhe lower head, 19, of the solenoid mount is formed with an integral bracket, 22, which carries the two contacts, 23 and 24, between which'the knife switch member, 35,- `is shifted, said knife switch member being carried by ythe lever,

.17, being" attached 4thereto byi'an insulating connector, 26. A lug, 27, extending down from the bracket,` 22, serves for attachment of one Vend of the spring, 28, which is" stretched therefrom past `the fulcrum of the lever, 16, and attached-to the farther. end of a said lever, which has a .laterally projecting stud,A 29, for making'such connection, thus affording thev snap -action for the switch.v

AFrom the source of electric energy, as *the battery conventionally 'indicatedat A'30,1 and having one pole grounded as indicated at 30, a circuit wlre, 30", from the opposite pole leads to an insulated binding post, 731, on the bracket, 2 2, at which thereis also connected the circuit wire, 33,' which extends to the knife switch member, .35;` The-twoopf posite contacts for the knife switch, 23 and 24, are each mounted insulated upon the bracket, 22, and have circuit connections, 37 .and 38 respectively, running-to the windings, ll'and 12,' ofl the two solenoids. Said windings are both grounded as indicated at 40,'bei'ng intermediatel'y extended toa manually operatedcut-out switch, 42, which for convenience may be mounted on the dash as seen' in Figure 1. j v v The operation .of this device will be, ob-

vious from the above description beinglthat I lever toward which it is moved in this move- 105 ment of the core, reverses the' position of the knife switch, the reversal occurrin by means of the snap action at the comp etion ofthe solenoid cores stroke and again Shifting the current to-the winding of the other 110'v 'i solenoid, so that the core is immediately reto which the two solenoid members when i energized iespectively tend to draw it, circuits containing the two solenoid 4windings respectively; a snap switch device adapted at one position to close one of said circuits and at.. another position to close the other circuit and operating connections from the reciprocating core for shifting said switch device from either of said positions to the other upon the 'arrival of thecore at said Acore positions respectively,'th'e snap switch comprising two levers having their ulcrums fixed with respect t0 the solenoid and terminating for encounter of an abutment carried by the solenoid core, and a link con.

necting said two levers for causing their movement to be simultaneous, one of said levers carrying themoving-contact member of the switch. l

Invtestimon whereof I have hereunto set my hand at (liliicago, Illinois, of February, 1923.

CHARLES s. BURTON.

this 5th day 35 

